riddles on a line [#2]
A second Riddle(r), with a puzzle related with the integer set Ð={,12,3,…,N}, in that it summarises as Given a random walk on Ð, starting at the middle N/2, with both...continue reading.
Category: R
Naïve Numerical Sums in R
Introduction The Kolmogorov distribution (which I call ) is as follows: There is no known simpler form and we have to work with this sum as it is. This is...continue reading.
Driving Drill Dynamically with Docker and Updating Storage Configurations On-the-fly with sergeant
The sergeant🔗 package has a minor update that adds REST API coverage for two “new” storage endpoints that make it possible to add, update and remove storage configurations on-the-fly without...continue reading.
Playing Map() and Reduce() in R – Subsetting
In the previous post (https://statcompute.wordpress.com/2018/09/03/playing-map-and-reduce-in-r-by-group-calculation), I’ve shown how to employ the MapReduce when calculating by-group statistics. Actually, the same Divide-n-Conquer strategy can be applicable to other use cases, one of...continue reading.
Who wrote that anonymous NYT op-ed? Text similarity analyses with R
In US politics news, the New York Times took the unusual step this week of publishing an anonymous op-ed from a current member of the White House (assumed to be...continue reading.
Custom themes in ggplot2
In the last post of this series of the STATWORX Blog, we explored ggplot2’s themes, which control the display of all non-data components of a plot. Ggplot comes with several...continue reading.
Diffusion/Wiener Model Analysis with brms – Part III: Hypothesis Tests of Parameter Estimates
This is the third part of my blog series on fitting the 4-parameter Wiener model with brms. The first part discussed how to set up the data and model. The...continue reading.
In case you missed it: August 2018 roundup
In case you missed them, here are some articles from August of particular interest to R users. A guide to installing R and RStudio with packages and multithreaded BLAS on...continue reading.
Tweetable Mathematical Art With R
Sin ese peso ya no hay gravedad Sin gravedad ya no hay anzuelo (Mira cómo vuelo, Miss Caffeina) I love messing around with R to generate mathematical patterns. I always...continue reading.
Sample size and class balance on model performance
Analyzing the relationship between the sample size and how it impacts on the accuracy in a classification modelcontinue reading.
Get Started with R (For Free) in IBM Watson Studio
A tutorial showing how to get started with R in IBM Watson Studio. It provides a free, hosted R environment. What’s not to love?continue reading.
Le Monde puzzle [#1650]
A penultimate Le Monde mathematical puzzle before the new competition starts [again!] For a game opposing 40 players over 12 questions, anyone answering correctly a question gets as reward the...continue reading.
Book review: SQL Server 2017 Machine Learning Services with R
If you want to do statistical analysis or machine learning with data in SQL Server, you can of course extract the data from SQL Server and then analyze it in...continue reading.
Gold-Mining W1 (2018)
Week 1 Gold Mining and Fantasy Football Projection Roundup now available. Go get that free agent gold! The post Gold-Mining W1 (2018) appeared first on Fantasy Football Analytics.continue reading.
How to do linear regression in R
Linear regression. It’s a technique that almost every data scientist needs to know. Although machine learning and artificial intelligence have developed much more sophisticated techniques, linear regression is still a...continue reading.
Playing Map() and Reduce() in R – By-Group Calculation
Clojure is such an interesting programming language that it can not only enhance our skill set but also change the way how we should write the program. After learning Clojure,...continue reading.
Internationalization of shiny apps has never been easier!
Why? Have you ever created a multilingual Shiny app? It is very likely that the answer is no, because Shiny just doesn’t have any good tools for that. In Appsilon we came across...continue reading.
Internationalization of shiny apps has never been easier!
Why? Have you ever created a multilingual Shiny app? It is very likely that the answer is no, because Shiny just doesn’t have any good tools for that. In Appsilon we came across...continue reading.
Animating the Premier League using gganimate
Ever wonder what an evolving gif of each premier league team’s goal difference vs points would look like made in R? Look no further! Most of this is going to...continue reading.
Spectrograms in R – a gallery
Creating a spectrogram is a basic step in every analysis of audio signals. Spectrograms visualise how frequencies change over a time period. Luckily, there is a selection of R packages...continue reading.
